The friendly Operating System for the Internet of Things
ndp.h
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1 /*
2  * Copyright (C) 2015 Martine Lenders <mlenders@inf.fu-berlin.de>
3  *
4  * This file is subject to the terms and conditions of the GNU Lesser
5  * General Public License v2.1. See the file LICENSE in the top level
6  * directory for more details.
7  */
8 
20 #ifndef NDP_H
21 #define NDP_H
22 
23 #include <stdint.h>
24 
25 #include "byteorder.h"
26 #include "net/ipv6/addr.h"
27 
28 #ifdef __cplusplus
29 extern "C" {
30 #endif
31 
37 #define NDP_RTR_ADV_FLAGS_MASK (0xc0)
38 #define NDP_RTR_ADV_FLAGS_M (0x80)
39 #define NDP_RTR_ADV_FLAGS_O (0x40)
49 #define NDP_RTR_ADV_CUR_HL_UNSPEC (0)
55 #define NDP_RTR_ADV_LTIME_SEC_MAX (9000)
56 
61 #define NDP_NBR_ADV_LTIME_NOT_DR (0)
62 
63 #define NDP_NBR_ADV_REACH_TIME (0)
64 #define NDP_NBR_ADV_RETRANS_TIMER (0)
72 #define NDP_NBR_ADV_FLAGS_MASK (0xe0)
73 #define NDP_NBR_ADV_FLAGS_R (0x80)
74 #define NDP_NBR_ADV_FLAGS_S (0x40)
75 #define NDP_NBR_ADV_FLAGS_O (0x20)
86 #define NDP_OPT_SL2A (1)
87 #define NDP_OPT_TL2A (2)
88 #define NDP_OPT_PI (3)
89 #define NDP_OPT_RH (4)
90 #define NDP_OPT_MTU (5)
91 #define NDP_OPT_AR (33)
92 #define NDP_OPT_6CTX (34)
93 #define NDP_OPT_ABR (35)
100 #define NDP_OPT_PI_FLAGS_MASK (0xc0)
101 #define NDP_OPT_PI_FLAGS_L (0x80)
102 #define NDP_OPT_PI_FLAGS_A (0x40)
110 #define NDP_OPT_PI_VALID_LTIME_INF (UINT32_MAX)
111 #define NDP_OPT_PI_PREF_LTIME_INF (UINT32_MAX)
119 #define NDP_OPT_PI_LEN (4U)
120 #define NDP_OPT_MTU_LEN (1U)
121 
128 #define NDP_MAX_INIT_RA_INTERVAL (16000U)
129 #define NDP_MAX_INIT_RA_NUMOF (3U)
130 #define NDP_MAX_FIN_RA_NUMOF (3U)
131 #define NDP_MIN_MS_DELAY_BETWEEN_RAS (3000U)
132 #define NDP_MAX_RA_DELAY (500U)
140 #define NDP_MAX_RS_MS_DELAY (1000U)
141 #define NDP_RS_MS_INTERVAL (4000U)
142 #define NDP_MAX_RS_NUMOF (3U)
150 #define NDP_MAX_MC_SOL_NUMOF (3U)
151 #define NDP_MAX_UC_SOL_NUMOF (3U)
152 #define NDP_MAX_ANYCAST_MS_DELAY (1000U)
153 #define NDP_MAX_NA_NUMOF (3U)
154 #define NDP_REACH_MS (30000U)
155 #define NDP_RETRANS_TIMER_MS (1000U)
156 #define NDP_DELAY_FIRST_PROBE_MS (5000U)
157 #define NDP_MIN_RANDOM_FACTOR (500U)
158 #define NDP_MAX_RANDOM_FACTOR (1500U)
167 typedef struct __attribute__((packed)) {
168  uint8_t type;
169  uint8_t code;
172 } ndp_rtr_sol_t;
173 
180 typedef struct __attribute__((packed)) {
181  uint8_t type;
182  uint8_t code;
184  uint8_t cur_hl;
185  uint8_t flags;
189 } ndp_rtr_adv_t;
190 
197 typedef struct __attribute__((packed)) {
198  uint8_t type;
199  uint8_t code;
203 } ndp_nbr_sol_t;
204 
211 typedef struct __attribute__((packed)) {
212  uint8_t type;
213  uint8_t code;
215  uint8_t flags;
216  uint8_t resv[3];
218 } ndp_nbr_adv_t;
219 
226 typedef struct __attribute__((packed)) {
227  uint8_t type;
228  uint8_t code;
234 
239 typedef struct __attribute__((packed)) {
240  uint8_t type;
241  uint8_t len;
242 } ndp_opt_t;
243 
244 /* XXX: slla and tlla are just ndp_opt_t with variable link layer address
245  * appended */
246 
253 typedef struct __attribute__((packed)) {
254  uint8_t type;
255  uint8_t len;
256  uint8_t prefix_len;
257  uint8_t flags;
262 } ndp_opt_pi_t;
263 
270 typedef struct __attribute__((packed)) {
271  uint8_t type;
272  uint8_t len;
273  uint8_t resv[6];
274 } ndp_opt_rh_t;
275 
282 typedef struct __attribute__((packed)) {
283  uint8_t type;
284  uint8_t len;
287 } ndp_opt_mtu_t;
288 
289 
290 #ifdef __cplusplus
291 }
292 #endif
293 
294 #endif /* NDP_H */
295 
network_uint32_t mtu
MTU.
Definition: ndp.h:286
uint8_t type
message type
Definition: ndp.h:168
Definitions for IPv6 addresses.
network_uint16_t csum
checksum
Definition: ndp.h:214
Prefix information option format.
Definition: ndp.h:253
Neighbor solicitation message format.
Definition: ndp.h:197
A 32 bit integer in big endian aka network byte order.
Definition: byteorder.h:86
Neighbor advertisement message format.
Definition: ndp.h:211
uint8_t code
message code
Definition: ndp.h:199
MTU option format.
Definition: ndp.h:282
uint8_t type
option type
Definition: ndp.h:254
A 16 bit integer in big endian aka network byte order.
Definition: byteorder.h:76
network_uint32_t pref_ltime
preferred lifetime
Definition: ndp.h:259
Redirected header option format.
Definition: ndp.h:270
uint8_t flags
flags
Definition: ndp.h:215
uint8_t cur_hl
current hop limit
Definition: ndp.h:184
uint8_t type
message type
Definition: ndp.h:227
network_uint16_t csum
checksum
Definition: ndp.h:229
General NDP option format.
Definition: ndp.h:239
network_uint32_t resv
reserved field
Definition: ndp.h:171
uint8_t flags
flags
Definition: ndp.h:185
uint8_t type
option type
Definition: ndp.h:283
uint8_t len
length in units of 8 octets
Definition: ndp.h:241
uint8_t type
option type
Definition: ndp.h:271
Router advertisement message format.
Definition: ndp.h:180
Redirect message format.
Definition: ndp.h:226
network_uint16_t csum
checksum
Definition: ndp.h:200
uint8_t prefix_len
prefix length
Definition: ndp.h:256
uint8_t type
message type
Definition: ndp.h:198
uint8_t type
message type
Definition: ndp.h:181
network_uint32_t resv
reserved field
Definition: ndp.h:260
ipv6_addr_t dst
destination address
Definition: ndp.h:232
network_uint32_t retrans_timer
retransmission timer
Definition: ndp.h:188
network_uint32_t reach_time
reachable time
Definition: ndp.h:187
ipv6_addr_t tgt
target address
Definition: ndp.h:231
network_uint32_t resv
reserved field
Definition: ndp.h:201
uint8_t code
message code
Definition: ndp.h:169
ipv6_addr_t tgt
target address
Definition: ndp.h:217
network_uint32_t valid_ltime
valid lifetime
Definition: ndp.h:258
Functions to work with different byte orders.
uint8_t type
option type
Definition: ndp.h:240
Router solicitation message format.
Definition: ndp.h:167
ipv6_addr_t prefix
prefix
Definition: ndp.h:261
uint8_t code
message code
Definition: ndp.h:182
uint8_t len
length in units of 8 octets
Definition: ndp.h:284
ipv6_addr_t tgt
target address
Definition: ndp.h:202
uint8_t type
message type
Definition: ndp.h:212
network_uint32_t resv
reserved field
Definition: ndp.h:230
Data type to represent an IPv6 address.
Definition: ipv6/addr.h:74
network_uint16_t resv
reserved field
Definition: ndp.h:285
uint8_t code
message code
Definition: ndp.h:213
uint8_t flags
flags
Definition: ndp.h:257
network_uint16_t csum
checksum
Definition: ndp.h:170
network_uint16_t ltime
router lifetime
Definition: ndp.h:186
uint8_t code
message code
Definition: ndp.h:228
uint8_t len
length in units of 8 octets
Definition: ndp.h:272
uint8_t len
length in units of 8 octets
Definition: ndp.h:255
network_uint16_t csum
checksum
Definition: ndp.h:183